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Full text of "CMS 140B (686770R) Service Manual"

Cash Register 



CMS 140 B 



SERVICE MANUAL 




Olivetti 



PUBLICATION ISSUED BY: 

Olivetti Lexikon, S.p.A. 

Documentazione 

77, Via Jervis - 1 001 5 Ivrea (Italy) 

Copyright © 1998, by Olivetti 

All rights reserved 



PREFACE 



This manual is addressed to the field engineers who will install and service the CMS 140B cash register. 
It provides all the information needed for a correct product maintenance. 



SUMMARY 



This manual is divided into seven chapters. 

The first three chapters describe the operating, functional checks, and maintenance and repair procedures. 

Chapter 4 describes the disassembly and adjustment procedures. Chapters 5, 6 and 7 describe the electronic 
circuitry, schematics and diagram and assembly construction. 



PREREQUISITES 

The topics described in this manual require knowledge of similar products. 



REFERENCE DOCUMENTATION 



Instruction Manual - (provided with the product) 
Spare Parts Catalogue 



DISTRIBUTION: General 

FIRST EDITION: December 1998 



686770R Service Manual Mi 



CONTENTS 



1. OVERVIEW 1-1 

1.1 TECHNICALSPECIFICATIONS 1-2 

2. SPECIFICATIONS AND 
OPERATING PRINCIPLES 2-1 

2.1 SPECIFICATIONS 2-1 

2.1.1 Features 2-1 

2.1.2 Specifications 2-1 

2.1.3 Mechanisms 2-2 

2.2 OPERATING PRINCIPLES 2-3 

2.2.1 Transmission/Select Mechanism 2-3 

2.2.2 Sensor Mechanism 2-7 

2.2.3 Printing Mechanism 2-8 

2.2.4 Inking Mechanism 2-9 

2.2.5 Paper Feeding Mechanism 2-10 

2.2.6 Print Cycle Initialization 2-12 

3. HANDLING, MAINTENANCE 3-1 

3.1 HANDLING THE PRINTER 3-1 

3.1.1 Precautions on Printer Handling 3-1 

3.1.2 Paper Installation 3-2 

3.1.3 Ink Roller Installation 3-3 

3.2 MAINTENANCE 3-4 

3.2.1 Cleaning 3-4 

3.2.2 Inspection 3-4 

3.3 LUBRICATION 3-4 

3.3.1 Lubricant Types 3-4 

3.3.2 Lubrication Points 3-4 

3.3.3 List of lubricants 3-4 

3.4 PROBLEM RESOLUTION 3-5 

3.5 PRINTER PIN ASSIGNMENTS 3-7 

3.6 TIMINGCHART 3-9 



4. DISASSEMBLY PROCEDURE/HOW 
TO LOCATE THE ASSEMBLIES 4-1 

4.1 HOW TO LOCATE THE POWER 
ASSEMBLY 4-1 

4.2 THE REMOTE BATTERIES/ 
LOCATION OF ON/OFF SWITCH . 4-2 

4.3 MACHINE DISASSEMBLY - 
REASSEMBLY 4-3 

4.3.1 MachineCase 4-3 

4.3.2 Printer Unit 4-3 

4.3.3 Main Board and Display 4-4 

4.3.4 Paper Feed Motor 4-4 

4.3.5 Battery Compartment 4-5 

4.3.6 Keypad 4-5 

5. BLOCK STRUCTURE CHART ... 5-1 

5.1 CIRCUITRY 5-1 

6. SCHEMATICS AND DIAGRAMS 6-1 

6.1 SYSTEM BLOCK DIAGRAM 6-1 

6.2 POWERSUPPLYCIRCUIT 6-2 

6.3 RESETCIRCUIT 6-3 

6.4 POWER FAILCIRCUIT 6-3 

6.5 DISPLAYCIRCUIT 6-4 

6.6 KEYBOARDCIRCUIT 6-5 

6.7 BUZZERCIRCUIT 6-6 

6.8 BATTERYCIRCUIT 6-6 

6.9 PRINTERCIRCUIT 6-7 

6-10 SCHEMATIC DIAGRAM 6-9 

7. ASSEMBLY CONSTRUCTION ... 7-1 



686770R 



Service Manual 



1. OVERVIEW 




Fig. 1-1 Overall View of the Cash Register 



686770R 



Service Manual 



1-1 



1.1 TECHNICAL SPECIFICATIONS 



Type: 
Display: 

Display capacity: 
Printer: 
Paper supply: 
Memory protection: 
Technology: 
Power supply: 

Line voltage: 

Power consumption: 
Operating temperature: 
Dimensions: 
Weight: 



Electronic cash register with 8 departments 

Bright double display with 1 6x6 mm numbers, error symbol, change, subtotal, minus, 
total and quantity 

9 digits 

ECR exclusive serial printer 

57 mm wide wood-free single ply tape 

Approx. 3 months after power interruption with 4 1.5 V Mignon batteries 

CMOS RAM 

AC Adapter 
Internal Battery 

220 V 

Stand-by 2.2 W; operating 4 W 

0°to40°C 

Depth 425 mm, Width 325 mm, Height 210 mm 

Approx. 6 Kg 



1-2 



Service Manual 



686770R 



2. SPECIFICATIONS AND 
OPERATING PRINCIPLES 

2.1 SPECIFICATIONS 

2.1.1 FEATURES 

The Micro Printer is designed for use with calculators. 
It offers the following features: 

Ultra-compact and lightweightdesign. 

Movable type for sharp printing quality. 

High printing speed using a mechanism that can 
return the carriage from any column position. 

Silent printing. 

Quick feeding and paper free functions. 

Can run on size AAA manganese batteries (low- 
powerdrive). 

Uses ordinary paper. 

Requires no motor speed control. 

2.1.2 SPECIFICATIONS 

The main printer specifications are listed below. 

Print method 

Serial printing with movable type 

Carriage width 

Maximum of 1 3 printable columns (including 2 symbol 
columns) 

Character position 

On symbol column side: 12 positions + 2 empty 

positions 

On numeric column side: 14 positions 

Character size 

1.6 (W)x 2.8(H) mm 

Intercharacter intervals 

Between numerics: 2.1 mm 

Between a numeric and a symbol: 2.6 mm 

Line spacing 

4.6 mm 

Print speed 

Average printing speed at 6.0 VDC, 1 3-column printing : 

Typically 0.7 l/s 
6-column printing: Typically 1.4 l/s 



Paper (supplied by the user) 

Type: Regular paper roll 

Size: Width 57.5 mm ±0.5 mm 

Roll diameter: 80 mm or less 

Thickness: 0.06 ~ 0.085 mm 

Average weight: 47 g/m 2 ~ 64 g/m 2 (40 ~ 55 kg/ 
1000 sheets/1091 x 788 mm) 

Paper feeding 

Typically 4.3 Ips. Fast paper feeding is also possible, 
and a paper release mechanism is provided. 

Inking 

Ink roller method 

Ink roller life: 700,000 characters 

Standard: IR-30 (IR-40 is also applicable) 



Motor 



,+0.5 , 



Terminal voltage: 6.0:2.0 VDC 

Average current: Approximately 0.14 A 

(during 1 3-column, 7-character 
shift printing at 6.0 VDC, 
25°C/77°F) 

Sensor 

Mechanical point of contact 

Reset signal R, Timing signal T, and Sub-timing 
signal t 

Trigger coil (electromagnet) 

Terminal voltage: 6.0+° JJ VDC 

D.C. resistance: 16. 7^(at25°C/77°F) 

Connection method 

Jumper wire on printer side 

Guaranteed operating temperature 

0°-40 < C/32°- 104T 
(guaranteed printing temperature: 
5°-40°C/41°- 104°F) 

Reliability 

MCBF: 300,000columns 

External dimensions 

86 (W) x 58.4 (D)x 19(H) mm 
(3.39 (W) x 2.30 (D) x 0.75 (H) inch) 

Weight 

Approximately 80 g (0.21 lb) 



686770R 



Service Manual 



2-1 



2.1.3 MECHANISMS 

This printerconsist of two print wheels, a hammer, and 
a carriage equipped with an ink roll. It is a serial printer 
with movable type, and it prints by sequentially moving 
the carriage across from the lowest-order column. 

When the motor is activated, the gear trains rotate and 
cause the print wheels and detection wheel to rotate. 
When the triggercoil charged by a signal (corresponding 
a character) output from the sensor, a character is 
selected, the print wheel stops, the print gear is rotated 
by the action of the planet gear, and a character is 
printed. 



The carriage then shifts to the next column (column- 
shift operation). When charge to the trigger coil is 
extended during character selection at the end of a line, 
printing is performed and the carriage is returned to the 
initial column. The paper is then fed forward to complete 
the printing of one line. 

This printer consist of five mechanism: the transmission 
and select, defection, print, inking, and paperfeeding. 

Fig. 2-1 shows an external view of the Micro serial 
Printer. For details on the operating principles and 
handling of each mechanism, see Subsection 
2.2 Operating Principles, and Chapter 3 Handling 
and Maintenance. 




Fig. 2-1 Exterior View 



2-2 



Service Manual 



686770R 



2.2 OPERATING PRINCIPLES 

2.2.1 TRANSMISSION/SELECT MECHANISM 

As shown in Fig. 2-2, this mechanism consists of the reduction gear train, and paper feed gear train. 



( 1 ) Motor drive signal input | 



«• (1) Reduction gear tram 



(?) Motor rotates | 



(3) Motor gear rotates | 



(4) Reduction gear rotates | 



(S) Planol gear rotates 



T_ 



i | (6) Satocltv drrv gear rolatas ] 



I 



| (7) Selective gear rotates {^ 



Released 






I Locked 



(1 5) Loc ked (selected) 



| (a) Papar lead ratchet whael rotates | 



(18) Released J 

(20) Relea sed 
i |<2 1 > Paper lead pawl oparatas~|T _ 



Locked 



|(22) Paper lead drive gear rotate *] 

1 ! 

|(23) Paper lead transmission gear rotates | 



(13) Salocllve pawl operatei | 1 ■ 

~ <f (H) Released 



|(I2) Trigger levar operates ] 



... r 



(3) Print gear train 
I 



J (16) Print changeover rotates] 

A 



| (1 1 ) Trigger plate operates] 
I (10) Trigger plate Is drawn 



E> 




J 



| (9) trigger coB drive signet lnput~| 



«■ (2) Selective mechanism 



RJ4) Papar teed gear r otates [ i *■ (4) paper teed gear irain 
|To paper toed mechanism I 



Fig. 2-2 Transmission/Select Mechanism 



686770R 



Service Manual 



2-3 



Reduction gear series 

(See Fig. 2-2 and 2-3) 

The reduction gear train consists of the motor gear, 
reduction gear, planet gear, selective drive gear, 
selective gear assembly, selective pawl, and print 
changeover cam. When the motor rotates (2), the 
rotational force is sequentially reduced from the motor 
gear (3) on the same shaft through the gear train to the 
selective gear assembly (7). 



The rotation of the print changeover cam is locked by 
the action of the selective pawl, so the paper feed 
ratchet wheel (8) on the same shaft as the selective 
gear assembly, the print wheel, and the detection 
wheel also rotate at the same time. 



Print changeover cam 

Planet gear 
(5) / Selective drive gear 

( 6 ) Motor gear 




Selective gear ass'y 



Reduction gear 




Selective gear ass'y 



Motor gear 
Reduction gear 
Selective pawl Planet gear 

Selective drive gear 
Print changeover cam 



Fig. 2-3 Reduction Gear Series 



2-4 



Service Manual 



686770R 



Select mechanism 

(See Fig. 2-2 and 2-4) 

As shown in Fig. 1 -4, the select mechanism consists 
of the selective gear assembly, trigger coil, trigger 
plate, trigger lever, and selective pawl. The select 
mechanism operates during rotation of the reduction 
gear series. When a drive signal is input (9) to the 
trigger coil in conformance with the timing signal output 
from the sensor, the trigger plate is drawn (1 0) to the 
yoke fixed on the selective gear assembly so that the 
trigger plate (1 1 ), trigger lever (1 2), and selective pawl 
(1 3) rotate together with the selective gear assembly. 
At the same time as the print changeover cam is 
unlocked, the selective pawl locks (15) the tooth 
section corresponding to the character of the selective 
gear assembly. When the selective gear assembly is 
stopped, the print wheel mounted on the same shaft 
also is stopped, and the character selected. 



Print gear series 

(See Fig. 2-2 and 2-4) 

The print gear series consists of the print changeover 
cam and the print gear. When the selective gear 
assembly is stopped by the select mechanism, the 
interlocked selective drive gear is also stopped. At the 
same time, the unlocked (1 4) print changeover cam is 
coupled and is rotated (16) by the planet gear of the 
totalling reduction gear series. The print gear thus 
rotates (1 7) and transmits its movement to the printing 
mechanism. 




- n Printing 

- J •— Paper feeding 



Trigger lever 

Trigger plate 

Trigger coil 



(11) 
'^C* ( 




Selective gear ass'y 



Print gear 

Selective gear ass'y \ Print changeover cam 
Trigger lever^ .J — ^. \ „.\— — ^ (gear section) 
Trigger plate, 

Trigger coil 




Selective pawl 



Fig. 2-4 Select Mechanism and Print Gear Series 



686770R 



Service Manual 



2-5 



Paper feeding gear series 

(See Fig. 2-2 and 2-5) 

As shown in Fig. 2-5, the paper feeding gear series 
consists of the paper feed ratchet wheel, paper feed 
ratchet, paper feed drive gear assembly, paper feed 
transmission gear, and paper feed gear. 

During column selection or consecutive paper feeding, 
the select mechanism and printing gear series operate 
by extending the trigger coil drive signal at the first 
column during space selection. However, the return 
lever and trigger lever are unlocked (1 8) to maintain the 
operation of the trigger plate and trigger lever. When the 
print changeover cam rotates, the cam controlling the 
return lever reaches a notched section. The return 
lever is thereby released and beings operating (1 9) due 
to spring force, and its interlocking with the paper feed 
ratchet is cancelled (20). 



The paper feed ratchet on the paper feed drive gear 
assembly operates (21) due to spring force and 
meshes with the teeth of the paper feed ratchet wheel 
on the same shaft as the selective gear. 

When printing operation is completed, the print 
changeovercam causes the selective pawl to return to 
its pre-selection status, and the print changeovercam 
is stopped. When the selection gear begins rotation, 
the paper feed drive gear assembly (22), paper feed 
transmission gear (23), and paper feed gear (24) all 
rotate together with the paper feed ratchet wheel. This 
movement is then transmitted to the paper feeding 
mechanism. 



Paper feed drive gear ass'y 

Paper feed ratchet wheel 
Trigger lever 




© 



Paper feed gear 

Paper feed rachet 



Print changeover cam 
(cam section) 



Fig. 2-5 Paper Feeding Gear Series 



2-6 



Service Manual 



686770R 



2.2.2 SENSOR MECHANISM 



(See Fig. 2-6) 

The sensor mechanism consists of the sensor as- 
sembly and the sensor gear. The sensor employs a 
mechanical contact-point system and generates a 
timing signal T and a sub-timing signal t in corre- 
spondence to each character position on the print 
wheel. 



The sensor also generates a reset signal at each 
rotation of the print wheel. Waveform rectification of 
these signals should be performed by the user, as 
timing or reset pulses. 



T„ 



Timing signal T 

Sub-timing 

signal t 

Reset signal R - 
Timing pulse TP 

Reset pulse RP 



_|OL 



IOL 



IW1L 



int 



TP 13 



jmniwift 

TP 



JpL 



RP„ 



TP, 




To- 



Detection wheel 



Ro- 



Co- 



t o- 



Fig. 2-6 Sensor Mechanism 



686770R 



Service Manual 



2-7 



2.2.3 PRINTING MECHANISM 



The printing mechanism performs two operations: 
printing and carriage movement. 

Printing operation 

(See Fig. 2-7) 

When the print gear series (see Subsection 2.2.1, 
Transmission/Select Mechanism) causes the print 
shaft and print cam to rotate in the direction of a 
arrows (1 ) and (2), the hammer rotates in the direction 
of -i arrow (3). 



Thus, the print wheel is pressed in the direction of -> 
arrow (4) by the hammer, and printing is performed. 

The print wheel, similar to the print changeover cam, 
rotates once with each printing operation, and printing 
is performed during the first half of the print shaft 
rotation. 



Print cam 



Print shaft 




Print wheel shaft 



Print wheel Hammer 



Fig. 2-7 Printing Operation 



Carrying operation 

(See Fig. 2-8) 

Carrying is performed after printing, during the sec- 
ond half of the print shaft rotation. As soon as the 
positioning plate begins rotating the print gear, the 
cam section of the print gear unlock its meshing the 
return lever, and the print gear meshes with the print 
cam. 



When the print shaft rotates in the direction of -> arrow 
(1 ), the meshing between the teeth of the print cam 
and the teeth of the positioning plate causes the print 
shaft to slide in the direction of -i arrow (2) while 
rotating in the direction of -i arrow (3). The simulta- 
neously with this carriage unit is carried sliding action 
(-i arrow (4)) 



Teeth of print cam Print cam 

/ Carriage unit 
\ ( ) (X) I ~~y ■ Teeth of positioning plate 





Print shaft 



Positioning plate 
(4) 



Print wheel 



Hammer 



Fig. 2-8 Carrying Operation 



2-8 



Service Manual 



686770R 



2.2.4 INKING MECHANISM 

(See Fig. 2-9) 

The ink roller is held lightly against the other periphery 
of the print wheel by the force of the ink roller spring. 

When the print wheel rotates, the ink roller also 
rotates and supplies ink to the wheel. 



I 



To mount or remove 




Ink roller spring 



Carriage 



Ink roller 



Print wheel 



Fig. 2-9 Inking Mechanism 



686770R 



Service Manual 



2-9 



2.2.5 PAPER FEEDING MECHANISM 

The paper feeding mechanism performs two opera- 
tions: carriage return and paper feeding. 

Carriage return operation 

(See Fig. 2-10) 

The paper feeding gear series (see Subsection 2.2.1 , 
Transmission/Select Mechanism) causes the return 
lever to drop into the cam section of the print 
changeover cam so that it meshes with the position- 
ing plate (-■ arrow (1) and (2)). 



The rotation of the print changeover cam restores the 
return lever to its original position (-■ arrow (3)) and 
rotates the positioning plate with which it is meshed 
(-i arrow (4)). 

As a result, the teeth of the positioning plate and print 
cam are disengaged (5), and the force of the print 
wheel spring and carriage spring returns the carriage 
(-■ arrow (6)). 



Carriage 




Positioning plate 



Return lever 



Print cam Positioning plate 




Return lever 



Print wheel spring 



Fig. 2- 1 Carriage Return Operation 



2-10 



Service Manual 



686770R 



Paperfeeding operation 

(See Fig. 2-11) 

Paper is feed while the paper feed drive gear assem- 
bly performs one rotation. When the paper feeding 
gear series (see Subsection 2.2.1, Transmission/ 
Select Mechanism) causes the paper feed gear to 
rotate in the direction of -> arrow (1), the paper feed 
roller within the platen also rotates in the direction of 
-i arrow (2), and the paper is fed by friction between 
the paper hold roller and the paper feed roller. 



When the paper feed ratchet within the paper feed drive 
gear assembly strikes the return lever, it disengages 
from the paper feed ratchet wheel, the rotation of the 
paper feed drive gear assembly stops, and paper 
feeding terminates. 



Paper feed gear 



Paper feed roller \ 




Platen 



Paper guide 



Paper hold roller 



Fig. 2- 1 1 Paper Feeding Operation 



686770R 



Service Manual 



2-11 



2.2.6 PRINT CYCLE INITIALIZATION 

To confirm that carriage is in stand-by status (at the 
first column), initialization must be performed prior to 
printing and paper feeding. Initialization is completed 
by performing a line feed. The following paragraphs 
describe printer timing operations for printing and 
paper feeding. 

Printing of the first line 

1 ) The Timing pulses TP are counted after the motor 
drive signal is applied and the motor is activated. 
The reset pulse RP appearing after eight timing 
pulses is regarded as RPo, and the first timing 
pulse TP after RPo rises is regarded as TPo. 

2) Character selection (first column) 

The trigger coil drive pulse is applied to the trigger 
coil during the interval from timing pulse TPn to 
TPn + 1 which corresponds to the desired charac- 
ter. At that time, the timing pulse interval (TPn to 
TPn +1) is measured to obtain TW1. Following 
character selection, the print wheel stops (the 
timing pulse retains the TPn + 1 status). Printing 
and carrying are then automatically executed. 

3) Character selection (second column and onward) 

The print wheel starts rotating again and the first 
timing pulse is TPn +2. Character selection can be 
performed from next timing pulse TPn + 3. The 
rest of the character selection operation is iden- 
tical to that described in step 2) above. 

4) Carriage return and paper feeding 

During character selection for the highest-order 
column of a line of print, printing, carriage return, 
and paper feeding are performed by adding: [the 
width of the drive pulse to the trigger coil] + [the 
timing pulse interval TW2 (TPn to TPn + 1 ) at that 
time] + [(the TP interval TW1 measured during the 
selection of the first column) x 6]. 

5) Motor off 

After completing the highest order printing in one 
line, the print wheel begins to rotate and timing 
pulse TP is generated. Counting from this initial 
rising pulse, the motor drive signal is cut off at the 
rise of the 14th timing pulse TP. 

NOTE: 

• The first timing pulse generated after the print 
column-shift process (TPn + 2) cannot be used for 
character selection. 



Consecutive printing 

1) The process for printing the initial line similar to 
that for "Printing the first line" above. 

2) Printing of second and later lines begins as 
follows: 

After printing the first line, the following pulses TP 
are counted with the motor still driven. Printing of 
the first column of the second line then begins at 
the rise of the 1 4th timing pulse in cases where the 
number of columns in the first line is 7 or less, 
otherwise, printing begins at the 21 st timing pulse. 
The same procedures as those in steps 2) to 4) of 
"Printing the first line" above are then performed. 

3) Consecutive printing is performed by repeating 
step 2) above. 

4) Motor off 

Step 5) of "Printing the first line" above is per- 
formed. 

Paper feeding for the first line 

1 ) The timing pulses TP are counted after the motor 
drive signal is applied and the motor is activated. 
The reset pulse RP appearing after eight timing 
pulses is regarded as RPo, and the first timing 
pulse TP after RPo rises is regarded as TPo. 

2) Paper feeding 

The empty character TP10 is selected. At that 
time, the timing pulse interval TP10 to TP11 is 
measured to obtain TW1 . When the width of the 
trigger coil drive pulse equals the measured TW1 
plus six times TW1 , the empty character on the 
print wheel is selected and the paper is fed. 

3) Motor off 

After the paper is fed for one line, the print wheel 
begins to rotate. Counting from the initial rising 
timing pulse, the motor drive signal is cut off at the 
rise of the 14th timing pulse TP. 

Fast paper feeding 

1 ) The process for feeding the initial line is similar to 
that for "Paper feeding for the first line" above. 

2) Paper feeding for the second and later lines begins 
as follows: after completing the paper feeding for 
the first line, with the motor remaining driven, the 
following timing pulses TP are counted. From the 
rise of the 21 st timing pulse, selection of the empty 
character TP10 becomes possible. Step 2) of 
"Paper feeding for the first line" above is then 
performed. 

3) Fast paper feeding is performed by repeating step 
2) above. 

4) Motor off 

Step 3) of "Paper feeding for the first line" above 
is performed. 



2-12 



Service Manual 



686770R 



3. HANDLING, MAINTENANCE 

3.1 HANDLING THE PRINTER 

3.1.1 PRECAUTIONS ON PRINTER 
HANDLING 

Transport precautions 

(See Fig. 3-1) 

1) When transporting the printer, never carry it by the 
jumper lead only. 

2) Avoid impact to the printer by dropping, striking it, 
or collision with another printer. 





Fig. 3- 1 Proper Handling of Printer 



Storage precautions 

• Avoid storage in locations exposed to excessive 
dirt, dust, moisture, or in direct sunlight. 

• For long-term storage (overone month), place the 
printer in a polyethylene bag after wrapping it in 
anti-rust (VPI) paper, then store it in adry location. 



686770R 



Service Manual 



3-1 



Use precaution 

• Since the printer employs a permanent magnet (in 
the motor section), avoid using it in locations 
exposed to excessive iron filings, dirt, dust, or 
other foreign particles. 

• Never use the printer without the paper and ink 
roller installed. 

• Make sure to use only the specified paper and ink 
roller. 

• The ink roller is a disposable part; do not attempt 
to refill its ink supply. 

3.1.2 PAPER INSTALLATION 

Loading the Paper 

When loading the paper into the printer, make sure to 
heed the following points. 

Paper insertion 

Insertion the paper into the printer with the paper roll 
positioned as shown in Fig. 3-2. 



Paper insertion precautions 

• Insert the paper straight into the paper entrance. 
Never insert paper having an uneven leading 
edge; never insert paper at a slant. 

• Push the paper in the feeding direction to make 
insertion easier. 

Removing the paper 

Remove the paper by following one of the two meth- 
ods below: 

• Perform paper feed using an electrical operation: 
Switch on the printer, press the Paper Feed button, 
and remove the paper. 

• The paper release mechanism in stand-by status 
allows the paper to be freely removed by pulling it 
out the printer. Pulling out the leading edge of 
the paper at a slant may cause jamming. 





o 



Fig. 3-2 Paper Insertion 



Leading edge of the paper roll 

The leading edge of the paper from the paper roll should 
be cut straight as shown in Fig. 3-3. 



o x 

Fig. 3-3 Leading Edge of the Paper Roll 



3-2 



Service Manual 



686770R 



3.1.3 INK ROLLER INSTALLATION 

Mounting the Ink roller 

(See Fig. 3-4) 

Place the ink roller in the cutout sections of the 
carriage, then press down gently until it clicks into 
place. 



Ink roller 




Carriage 



Fig. 3-4 Ink Roller Installation 



Replacing the ink roller 

(See Fig. 3-5) 

Press the knob of the ink roller in the direction of 
the -i arrow, then lift the ink roller up and out of the 
carriage. 



Ink roller 




Fig. 3-5 Ink Roller Replacement 



686770R 



Service Manual 



3-3 



3.2 MAINTENANCE 

To prevent potential trouble, make sure cleaning and 
inspection is carried out according to the points de- 
scribed in the following subsections, depending on the 
environment in which the printer is used. 

3.2.1 CLEANING 

Eliminating dirt or stains 

Wipe off soiled areas using alcohol or benzene. 
Eliminating dust, scraps, and other foreign particles 
Use a vacuum cleaner to carefully draw out all foreign 
particles from every area of the printer. 

NOTES: 

Never use thinner, tricholyene, or ketone solvent as 
they may deteriorate or damage plastic parts. Check 
the lubricant remaining in each cleaned area and 
perform lubrication as required (see Subsection 3.3.2, 
Lubrication Points). 



3.2.2 INSPECTION 

Check the printer to see if it is being operated properly 
and if it is being maintained in optimum condition. If 
any unsatisfactory points are discovered, they should 
be remedied. In particular: 

Make sure that the ink roller is securely installed 
in the carriage. 

Make sure that the ink roller in use conforms to the 
specifications. Check the ink roller for damage, 
and replace it if it is affecting print quality. 



3.3 LUBRICATION 

3.3.1 LUBRICANTTYPES 

The types of oil used greatly influence the perform- 
ance and durability of the printer, especially at low 
temperatures. 



3.3.2 LUBRICATION POINTS 



No. 


Lubrication Point 


Oil Type 


(1) 


Contact point between selective gear assembly and trigger plate 


0-3 


(2) 


Contact point between print shaft and frame (2 points) 


0-3 


(3) 


Outer surface of print shaft 


0-3 


(4) 


Outer surface of print wheel shaft 


0-3 


(5) 


Contact point between print cam and hammer spring 


0-3 


(6) 


Contact point between print cam and the positioning plate 


0-3 


(7) 


Contact point between positioning shaft, frame, and return lever (3 points) 


0-3 


(8) 


Contact point between reduction gear and the E-ring 


0-3 


0) 


contact point between selective drive gear and reduction gear 


0-3 


(10) 


Contact point between selective pawl and print changeover cam 


0-3 



3.3.3 LIST OF LUBRICANTS 



Item 


Designation 


Volume 


Oil 


0-3 


40 gm 


Grease 


G-34 


40 gm 



3-4 



Service Manual 



686770R 



3.4 PROBLEM RESOLUTION 

In general, the printer should be replaced when problems arise. Depending on the particular problem, however, 
the printer may be easily repaired. Therefore, take necessary corrective actions according to the following table. 
In the case of problems for which no corrective actions exist in this table, the printer should be replaced. 



Problem 



Cause 



Checkpoint 



Repair Method 



Motor doesn't rotate during 
printing or its rotation is 
locked. 



(1) Defective power 
input to motor. 



Motor rotates normally, but 
printing is not performed. 



Top, bottom, or sides of 
printed characters are 
missing. 



Check the input 
voltage between 
the motor terminals 
using a multimater 
or oscilloscope. 



Repair the power 
supply circuit. 



( 2 ) Defective jumper 
wire. 



Check the 
conductivity 
between the motor 
terminals. 



Resolder of 
replace the printer. 



(3) Adhesion of foreign 
matter to the 
rotating 
mechanism. 



(4) Defective motor. 



( 1 ) Defective 
conductivity of 
jumper wire. 



(2) Abnormal charge 
pulses to the 
trigger coil. 

(1) Adhesion of foreign 
particles to 
positioning plate. 



Manually rotate the 
motor gear 
counter-clockwise 
and check for the 
adhesion of foreign 
matter. 

Check above 
causes 1 ) to 3) to 
see if they are 
applicable. 

Check the 
conductivity 
between the 
terminals of the 
detector assembly 
and trigger coil. 

Check whether the 
charge pulse 
widths are within 
the rated values. 

Check the column- 
shift teeth of the 
positioning plate 
for wear and for 
the adhesion of 
foreign matter. 



Remove any 
foreign matter. 



Replace the 
printer. 



Resolder of 
replace the printer. 



Check the control 
board side and 
replace it. 

Remove any 
foreign matter. 



(2) Adhesion of foreign 
particles to print 
wheel assembly. 

( 3 ) Stretched print 
wheel assembly or 
worn characters. 



Check for foreign 
matter adhered to 
the front of the 
print wheel. 

Check for wear at 
the frame or 
typeface of the 
print wheel. 



Remove any 
foreign matter. 



Replace the 
printer. 



686770R 



Service Manual 



3-5 



Problem 


Cause 


Checkpoint 


Repair Method 


Smudged or faint printing. 


(1) Improper position 


• See Ink Roller 


• Remount the ink 




of ink roller 


Installation in 
Chapter 3 and 
check. 


roller. 


(2) Use of improper ink 


• Check whether the 


• Remount the ink 




roller 


specified ink roller 


roller using only the 






is being used. 


specified. 


(3) No ink supply 


• Check the ink 


• Replace the ink 






supply status. 


roller. 


(4) Adhesion of foreign 


• Check for the 


• Remove any 




matter to the print 


adherence of in 


foreign matter. 




wheel or platen 


clumps, paper 






assemblies. 


dust, dirt, etc. 




The line spacing pitch of 


(1) Use of improper 


• Check for the 


• Use the specified 


the printed characters is 


paper. 


specified paper. 


paper. 


uneven. 




Standard: see 
Subsection 2.1.2, 
Specifications. 




(2) Defective paper 


• Check the paper 


• Remove the 




supply. 


supply path for 


obstructions and 






obstructions and 


correct the load. 






exerted load. 




The carriage does not 


(1) Abnormal input 


• Check the circuit to 


• Check the control 


move. 


pulse to the trigger 


see if the pulse 


board side and 




coil. 


width of the carrying 
charge is normal. 


replace it. 


(2) Malfunction of the 


• With the 


• Remove any 




positioning plate. 


positioning plate 
unlocked, check for 
stretching of the 
return lever spring 
and for foreign 
matter between the 
positioning shaft 
and positioning 
plate. 


foreign matter. 


The carriage does not 


(1) Abnormal input 


• Check the circuit to 


• Check the control 


return. 


pulse to the trigger 


see if the pulse 


board side and 




coil. 


width of the return 
charge is normal. 


replace it. 


(2) Malfunction of the 


• Check for dirt 


• Remove any dirt. 




positioning plate 


between the 
carriage and the 
print wheel 





3-6 



Service Manual 



686770R 



3.5 PRINTER PIN ASSIGNMENTS 

Fig. 3-6 illustrates the pin assignments of the printer 
circuitry. 

NOTE: 

The printer sensor side is regarded as "1". 



Connection 
Trigger magnet (-) 

Trigger magnet (+) 

Motor (+) 

Motor (-) 

Timing T 

Reset R 



Pin No. 

1 o npyw- 



2 O 



3 O 



4 O 



5 O 



<M> 



O- 



6 O 



O 



Common C 



7 O 



Sub-Timing signal t 



8 O 



O 



Fig. 3-6 Pin Assignment Diagram 



686770R 



Service Manual 



3-7 



3.6 TIMING CHART 



(1) 1 Line printing 
Process 



*1) [Motor drive signal 
Reset signal 



*1) Reset pulse RP 



Timing signal T 
Timing sub-signal t 



*1 ) j Timing pulse T P~ 



*1) | Trigger solenoid drive signal 



Character wheel rotation 

Lateral movement of character wheel 

Hammer movement 

Carriage movement 

Positioning plate movement 

Paper feed clutch 
Paper feed 



(2) Paper feed (2 lines) 



1) Motor drive signal 



1) Reset pulse RP 



*1) jTiming pulse TP 



*1) |Trigger solenoid drive signal 

Character wheel rotation 
Hammer movement 

Positioning plate movement 

Paper feed clutch 
Paper feed 



■^ 



1 line printing (printing to 3 columns of "6«M") 



X 



Character Printing Character Printing 

selection „ i" carriage shift. | selection . , carriage- shift . 



-**- 



-T^r 



•M 



(10 ct. equivalent) 



4k 



4JUUUUIMILX 



jliiuiyurjiiu: 



2 3 5 6 !r s 



JlfUUUPlUL 



-*$- 



Character 
selection 



-*£- 



Printing 



Paper leed, 
carriage return 



->* 



Continuous printing 
( denotes) 



UUUULpL 



MMJ\v 

9 10 It IjHj 

UUUUlf 



(to cl. equivalent) 



w* 14 cl. <min.) 
i< ! 1 



=*$ 



Pnniing 
carriage return 



Cherader 

s^iec&on 



n 



! 

__JjUuuuyuuut { i___ 



2 3 4 5 6 |7 



. 9 9 Hit 3 i 5 6 ,7 8 

:z31mjuvuim]uii:: 




! 9 i o i •- 

<-| nr. n 

(iiliij L 






"01234561 66 



Paper feed 1 cycle (38 ci. equivalent) 



(10 cl. equivalent 



->^7 



(25 cl. equivslen!) 



,,J1J1J1M]1MIUU1(1J 



JT 



JT 



(10 c!. equivalent) 

r= ="r*~ 



14 cl. 



->i 



Note: 
*1)C 



^] denotes the signal and the pulse to be generated by the 
customers 

*2) Trigger solenoid drive pulse width for the last column of a line to be 
printed in is gained in such a manner that 6 ± 1 times of the timing 
pulse interval at a character selection for the first column is added 
to the timing pulse interval TW2 at the selection for the last column. 
At the paper feed time, TW1 x 6 ± 1 times is added to TW1 (timing 
pulse interval at the selection of the space position.) 

*3) Timing signal T at printing and shift of carriage having character 
wheels there on sometimes changes as shown by a broken line. 

*4) Timing signal T8 and timing sub signal t8 "make" or "break" 
irregularly within 4 times the timing pulse interval TW1 . In this case, 
when timing sub-signal t8 "makes" timing signal T8 may "make" until 
the end of the 4 x TW1 period, or may not "make" until the end of 
carriage shift. 

After printing and carriage shift, the first timing sub-signal t is t8. The 
timing signal T generated immediately before the timing sub-signal 
t8 is T8. 

The timing signal T generated immediately after the timing sub- 
signal t8 is T9. 

When printing and paper feeding, after applying the trigger solenoid 
drive pulse, the timing signal T and the timing sub-signal t are 
generated as describe condition. ( Counting is different depending 
on selected characters.) 

*5) cl. is a abbreviated form of clock which means timing pulse interval. 



stop 



JT 



-TV 



1 12 I] 1 2 3 4 5 6 1 8 9 10 1117 13 1 2 1 « 5 6 1 8 9 10 \l ' 12 13 1 2 3 i 5 6 J 8 9 10 tl J2 '' « 

llJMjiMllMfUMIUbTM 




686770R 



Service Manual 



3-9. 



4. DISASSEMBLY PROCEDURE/HOW TO LOCATE THE ASSEMBLIES 




Fig. 4- 1 Cash Register Front View 



4.1 HOW TO LOCATE THE POWER ASSEMBLY 




Power Cord 



Battery Housing 



Fig. 4-2 Cash Register Rear View 



686770R 



Service Manual 



4-1 



4.2 THE REMOTE BATTERIES/ 

LOCATION OF ON/OFF SWITCH 

Remove the cover (1 ). 

Remove the paper roll and roll holder. 

Remove the battery housing cover (2) in the direc- 
tion of the arrow. 




Fig. 4-3 Locating the Battery Compartment and Printer Cover 




ON/OFF 



Fig. 4-4 Locating the ON/OFF Switch 



4-2 



Service Manual 



686770R 



4.3 MACHINE DISASSEMBLY 
REASSEMBLY 

4.3.1 MACHINE CASE 



Disassembly 

• Unplug the machine powercord from the electrical 
wall outlet. 

• Loosen screw (1) 

• Pushthecaseofthemachine(2) in the direction of 
the arrow (3). 

• Remove the case (2) by lifting it the direction of 
arrow (4). 

.5 



Reassembly 

• Correctly position the case on the machine. 

• Push the case (1 ) in the direction of arrow (5). 

• Tighten screw (1). 

• Plug the machine powercord into the electrical wall 
outlet. 




Fig. 4-5 Machine Case Disassembly/Reassembly 



4.3.2 PRINTER UNIT 

Disassembly 

• Remove the printer compartment cover (1 ). 

• Remove the machine case (2). 

• Disconnect connector (3). 

• Using a screwdriver, remove screw (4) that secures 
the paper support (5) and remove this support. 

• Remove the printer (6) in the direction of the arrow 
shown being careful to avoid damaging the 
connection cables. 



Reassembly 

• Correctly position the printer (6) as shown in the 
figure. 

• Correctly position the paper support (5) and tighten 
its related securing screw (4). 

• Reattach the connector (3). 

• Refit the case of the machine (2) and the printer 
compartment cover (1 ). 





Fig. 4-6 Printer Unit Disassembly/Reassembly 



686770R 



Service Manual 



4-3 



4.3.3 MAIN BOARD AND DISPLAY 



Disassembly 

• Remove the machine case. 

• Disconnect the printer connector (1 ). 

• Disconnect the paper feed motor connector (2). 

• Disconnect the keypad connectors (3). 

• Disconnect the battery supply connectors (4). 

• Disconnect the power supply connector (5). 

• Disconnect the battery supply 
connector (6). 

• Using a screwdriver, remove the securing 
screws (7). 

• Remove the main board (8). 



Reassembly 

Perform the disassembly procedure in reverse order. 




Fig. 4-7 Main Board and Display Disassembly/Reassembly 



4.3.4 PAPER FEED MOTOR 



Disassembly 

• Remove the machine case. 

• Disconnect the motor power supply connector (1 ). 

• With a screwdriver, remove securing screws (2). 

• Remove motor (3) with its related support (4). 



Reassembly 

• Correctly position motor (3). 

• Tighten securing screws (2). 

• Reconnect the motor power supply connector (1 ). 

• Refit the machine case. 




Fig. 4-8 Paper Feed Motor Disassembly/Reassembly 



4-4 



Service Manual 



686770R 



4.3.5 BATTERY COMPARTMENT 



Disassembly 

• Remove the machine case. 

• Remove the securing screws (1). 

• Remove the battery compartment. 



Reassembly 

• Perform the disassembly procedure in reverse 
order. 




Fig. 4-9 Battery Compartment Disassembly/Reassembly 



4.3.6 KEYPAD 



Disassembly 

• Remove the machine case. 

• Disconnect the keypad - main board connectors (1 ). 

• Using a screwdriver, remove securing screws (2). 

• Remove the keypad (3) together with the machine's 
ON/OFF switch (4). 



Reassembly 

• Correctly position the keypad (3) and the ON/OFF 
switch (4). 

• Tighten the securing screws (2). 

• Restoreconnection(l). 

• Refit the machine case. 




Fig. 4-10 Keypad Disassembly/Reassembly 



686770R 



Service Manual 



4-5 



5. BLOCK STRUCTURE CHART 



As illustrated in the Chapter 6. 

5.1 CIRCUITRY 

Functions in each circuit is explained below block by 
block. 

• Block A: Display Control 

LCD driver is included in the main CPU and is 
directly driven by ports below. 

* COM - COM 1 -COM2 

* SEG - SEG 25 - SEG 32 - SEG 33 
LCDs are 1/3 duty, 1/2bias. 

• Block B: Scan Signal for Key switch, Mode 
switch and Paper feed key: 

Scan Signal Output Ports: from ports P07 - P12- 
P60 and P61 , by High-active scan output. 

Key switch: when P54 - P57 are depressed, they 
are accepted as return input of the key matrix. 

Mode lock switch and Feed key: P53 is read in as 
a return input. 

* To prevent input errors caused by chattering, 
data will be read twice before accomplishing key 
input. 

• Block E: Buzzer: 

When Port P45 gets high, oscillating signals pro- 
grammed at NAN D gate make transistor 2SA2603 
on/off and make the buzzer buzz. 

• Block F: Reset Circuit: 

Reset IC works to reset main CPU. 

NOTE: 

1) Reset does not work when backup function is 
working. 

2) CPU needs to be reset at the first setting up, 
otherwise normal operation would be hindered. 
To secure normal operation, first install opera- 
tion batteries worth OFF mode. Next turn the 
key to REG1 mode, then place memory backup 
batteries. 



Block G: Black-Out Detection Signal: 

Blackout signal is generated when voltage in Vcc 
line drops to 3.0 V. This signal gets "low" at the 
time of blackout and is transferred to Port 42 for 
CPU to dispose it. Once blackout is detected, X 
IN halts and only X CIN oscillates to turn the cash 
register for electric consumption mode. Backup 
currency at this time is about 10-40 uA. 

Block H: Printer Control: 

Motor Drive: P51 (low active) 

• Printing Trigger: P50 (low active) 

• Timing Signal: P43 

• Reset: P44 

NOTE: 

Waveforms for timing signals and reset signals 
are shaped by flip-flop at NAND gate. 

Block I: Circuitry: 

This machine operates both by dry batteries and 
with use of AC adaptor. Inserting an adaptor jack 
automatically disconnect the battery circuit. 

Voltage at each power line is as follows (at rated 
voltage input). 

VBB: 6.0 V (with backup) 

Vcc: 6.0 V 

Vprm: 6.0 V (when printer is not working) 

V BB / V cc are provided via a stable circuit that 
uses 3-terminal regulator (S81250HG). 



686770R 



Service Manual 



5-1 



6. SCHEMATICS AND DIAGRAMS 



6.1 SYSTEM BLOCK DIAGRAM 



Printer Unit Model-M31 



Solenoid 
Driver 



Motor 
Driver 



Wave 
Fomer 



(Printer) 
VP VCC VBB 

t t f 



Power supply 



4.0MHz 32.768KHz 



Clock 



Clock 



Main CPU 
M38203M4-374FP 
16K bytes ROM 
512 bytes RAM 



Power Fail 



Dry Battery 
Back UP 



AC 
Adaptor 



Dry Battey 



OPERATION 



Segment ' 



COM0,COM1,COM2, 



9digits Front Display 



Key scan 



Key scan 
return 



Keyboard(9x4 matrix) 
Feed key 
Mode lock 



Buzzer 



Reset 



Fig. 6- 1 System Block Diagram 



686770R 



Service Manual 



6-1 



6.2 POWER SUPPLY CIRCUIT 



55 



Jo- 



4 



Hf 



-M* 



2* 



2 5- 



as 



vr-Hl' 



S5 



\A^ 



§^i 



«lfei ► 



^ 



n 



! * 



►- ID -^ 



^ 



-l»f- 



3 I 



ijjj 101 Q 



F/g. 6-2 Power Supply Circuit 



6-2 



Service Manual 



686770R 



6.3 RESET CIRCUIT 



VBB 
Q 



EC2 
1tf=S0V 



R31 
100K 






O.lu 



SMT27AN 



Fig. 6-3 Reset Circuit 



6.4 POWER FAIL CIRCUIT 



* 



479 



V 



KM 
7K 



e no 

3SCI«03 



■K 



voa 
o 




TS 

2SMI1S 



RM 
«.7K 



aaiu 



F/g. 6-4 Power Fail Circuit 



686770R 



Service Manual 



6-3 



6.5 DISPLAY CIRCUIT 




77777, 

5 i c ' «i 






jTggg 



\IIS|S 



\IJ9» 



CWg3B~ 



s H93S 



» 8 






7? 



•5C=SSSS5S 

I8HR"'" 



S c 



1*^1 



33335 



Mosvwd 

USSS/ltd 

•isaartd 
cisasred 
ozsas/Kd 

IZ93S/9td 

uoavKd 

»93S/ttd 

KO3S/0QJ 

Koasrcod 
itoastod 
■coasted 
scoaswid 
ocsasrod 
tesasaod 
ccoasnud 
ccsasriid 

KS3SS?td 

nsas^cid 
■M>o3ay*!d 
ttoaswd 
•csasmd 
tcsas/tid 



ooas 

oioo 
moo 
irioo 
ones 

5TA 

ETA 

ITA 

IdlUnSd 

OdlfcVClNIWd 

ClNVtid 

lnoi/wd 

IWlNiarSSd 

oyiwywd 

tAQMSrtBd 
E*13S/i:Sd 

rxnosnsd 

o*s/i»d 

i &SBg& fctd 

(PI1/9M 

a*wmd 

tlNVtfrd 
QlNITCt-d 



— ? — — w 



gcBeeSEEilsiElsIi 



flfflfflfflffl 



Fig. 6-5 Display Circuit 



6-4 



Service Manual 



686770R 



6.6 KEYBOARD CIRCUIT 



M3* 



it i 



QQQ00E 



8 I 



:s 



I 



i 






\c 



\e 



\o 



\c 



! i 



V 



-V 



-w- 



s i 

-w- 



\ 



\ 



\ 



\ 



\ 



\c 



V- 



v 



v 



v 



\c 



w 



\ 



V 



\c 



\ol 



\c 



I 



\c 



v- 



\e 



\c 



\ 



V 



\ 



V 



\^ 



V 



V 



V 



Fig. 6-6 Keyboard Circuit 



686770R 



Service Manual 



6-5 



6.7 BUZZER CIRCUIT 



-H& 



2- 



PSt740P02 

R2T 



4.7K 
2SC2S03 



J2K C1S I 



81*1 M " 
U3C WO 



3 W9 '* 



R» * 
47K 4 



6.8 BATTERY CIRCUIT 



Fig. 6-7 Buzzer Circuit 



-M N W- 

1N414B 1N4148 1N4148 



- ■ - noi us* i 

^< Kr 



EC4 
33u 16V 



Fig. 6-8 Battery Circuit 



6-6 



Service Manual 



686770R 



6.9 PRINTER CIRCUIT 



2 -X 



\_ 



CI 
Q.tU 



si 



> 



I 



«H *.7K 



ZSC324ZA 



i T1 «2 

I 2SC2S03 



I T* 
i 2SC3242A 



1*WM lEW M31 



4 TOT 



X 
X 







C13_ 
Tor* 



I 

T" 1 



^O- | „i 



^o> 



U2» 
J 



1*001 
U2C 






U20 

-LU 



-x 



-x 



F/gr. 6-9 Printer Circuit 



686770R 



Service Manual 



6-7. 



6.10 SCHEMATIC DIAGRAM 




Dry Battery 



686770R 



Service Manual 



6-9. 



7. ASSEMBLY CONSTRUCTION 



CAP LOCK KEY SET 
EAN-1196 



K/&-FRAME 

K/CQVEiU/TOI 1 
EBa-0043 



KEY lOPIlxl) 
EBH-QS05 




00-55100540 



EOM-1470 
Oa-46505020 



DRAWER 
DST5-4/4 
00-46704030 



686770R 



Service Manual 



7-1. 



SPARE PARTS CATALOGUE 



IMPORTANT 

This publication is written by TATRIUMPH-ADLERVertriebs GmbH (Service Department). 
This document is the only document to which reference may be made for ordering spare 
parts 

Spare parts should be ordered at the following address: TA Triumph-Adler Vertriebs GmbH 

Service Department 
Further StraBe 212 
Nuremberg 



November 1998 TA Triumph-Adler Vertriebs GmbH 

Subject to Alterations Further StraBe 212 

90429 Numberg 

686770R Spare parts catalogue A - 1 



EXPLODED PARTS 



REF. 



CODE 



DESCRIPTION 



1 


037498 N 


MAIN BOARD 


2 


037499 P 


M38203M4-374FP 


3 


037500 U 


DISPLAY LCO- B5180A 


4 


037502 J 


COMPLETE KEYBOARD ASSEMBLY 


5 


037503 K 


KEY DRAWER 


6 


037504 L 


PRINTER M31-041 


7 


128710 D 


MOTOR 


8 


037505 M 


DRAWER GROUP 


9 


037506 N 


COVER ASSEMBLY 


10 


037507 P 


PRINTER COVER 


11 


037508 Y 


FRONT COVER 


12 


037509 Z 


DEPOSIT DRAWER 


13 


037510 M 


WINDING REEL 


14 


037511 A 


BATTERY BOX 


15 


037512 B 


BATTERY COVER 


16 


037513 C 


DISPLAY FILTER 


17 


037514 D 


CAM LOCK KEYSET 


18 


037515 E 


AC ADAPTOR 



Spare parts catalogue 



686770R 



EXPLODED PARTS 




686770R 



Spare parts catalogue 



A - 3. 



STATO Dl AGGIORNAMENTO 
UPDATING STATUS 



DATA 
DATE 


PAGINE AGGIORNATE 
UPDATED PAGES 


PAGINE 
PAGES 


CODICE 
CODE 


2/1999 


1 a EDIZIONE - 1 st EDITION 


55 


686770R-00